Question

Equivalent weights of H3PO3 and H3BO3 when they completely react with NaOH having molecular masses M1 and M2 respectively

Answer 1

Explanation:

Brainly.in

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VIRTI1

31.05.2018

Chemistry

Secondary School

+5 pts

Answered

The equivalent weight of h3po4 in the given reaction is naoh+h3po4=nah2po4+h2o

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Answers

tiwaavi

tiwaavi Genius

In the Given Reaction,

NaOH + H₃PO₄ ----------→ NaH₂PO₄ + H₂O

We know that for the Acids, the equivalent weight is equal to the ratio of the molar mass and number of the hydrogen ions of the acid accepted by the base.

∴ In the given reaction,

No. of hydrogen ions replaced by the Base of the Acid = 2

Molar mass of the Acid = 98 g/mole.

∴ Equivalent Weight = 98/2

= 49

Hence, the equivalent weight of the Acid is 49.